Let's see what ICs Amazon threw into the Fire HD to make it burn:

Samsung KLMAG2GE4A eMMC 16 GB Flash Memory and Flash Memory Controller

Elpida B8164B3PF-1D-F 8 Gb (1 GB) DDR2 RAM

Texas Instruments TWL6032 Fully Integrated Power Management IC

Broadcom BCM2076 Multifunction Monolithic IC with GPS and GLONASS AGPS, Bluetooth 4.0, and FM Receiver/Transmitter

Wolfson WM8962E Ultra-Low Power Stereo CODEC

B50 5222 12507A9A10, which the folks at Broadcom tells us it's a BCM43239 802.11n Wi-Fi package.

The backside of the board is mostly blank, save for the InvenSense MPU-6050 gyroscope / accelerometer and one of the two Wi-Fi antennas used for MIMO technology